Brush.



(Y). GE|GER.& R. R. RADINSE. BRUSH.

APPLICATION FILED JAN. 27.1915- Patened Mar. 7,1916.

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OHIO.

BRUSH.

Specification of Letters Patent.

Patentedll/Iar. l?, 1916.l

Application led January 27, 1915. Serial No. 4,614.

To all whom 'it may concern Be it known that we, OTTO GEIGER and RUDOLPHR. RADrNsE, citizens of the United States, residing at Cleveland, in thecounty of Cuyahoga and State of Ohio, have invented la certain new anduseful Improvement in Brushes, of which the following is a full, clear,and exact description, referencey being had to the accompanying rawings.

This invention relates to brushes, and particularly to rotary brushes ofthe kind used in polishing metals and other substances, and that areadapted to be fastened upon the spindles of suitable machines wherebythe brushes are rotated.

The invention has for its object the provision of a very durable brushof the above character that is simple of construction and veryeconomical of production.

. A further and more limited object comprehended by our invention is theprovision of a brush of the aforesaid nature that is composed of one ormore brush units, comprising each a hu member from which radiatebristles, and a bushing that is adapted to be pressed into the hubmember or members and which, in the case of more than one unit beingemployed, serves to firmly hold the units together. From this it will beseen that brushes of various sizes may be produced the use of the sameequipment. The aforesaid bushing is provided with a central aperture forthe reception of the end of a threaded spindle, and preferably thebushing is of soft enough material to permit threads to be formed withinthe aperture by the application of the brush to the spindle. v

There is shown inv the accompanying drawing a brush wherein theforegoing objects are attained, and while we will proceed to describethe brush in detail, we wish to be understood as not to the structuraldetails thereof further than is required by the terms of the annexedclaims and is rendered necessary bythe state of the prior art.

In the drawings, Figure 1 is a perspective view of a brush of `ourinvention; Fig. 2 is a section therethrough on a line coincident withthe rotating axis .of the brush; Fig. 3 isa side elevation of one of thebrush units; Fig. 4 a perspective view of a fragment o a bristlecarrying element; and Fig. 5 is a y similar view of a hub member.

limiting ourselves Taking up a detail description of the invention bythe use of reference characters, 1 represents the bristles or strands,the tufts whereof are grasped at their middle between the turns of theintertwisted wires 2. The ends of the tufts arethen turned toward eachother and the tufts are crimped about the wires 2 into U shape form, asclearly shown in Figs. 2 and 4. The hub member 3, which is preferablyformed of an integral piece of sheet metal, comprises a sleeve orthimble to which the numer al 3 is applied,

and from one end of which extends a lateral A fia-nge 4. The oppositeend of the sleeve or thimble is notched or serrated to form prongs 5.The bristle carrying element, comprising the intertwisted wires 2, is of'sufficient length to extend ference of the sleeve 3, and the oppositeends of the wires are twisted together to retain a circular shape to theelement.

The bristle carrying element may be slipped over thei sleeve 3 andagainst the inner surface of the ange 4f. Thereafter, the prongs 5 areturned voutward and pressed around the wires 2 toward the flange 4asclearly shown in Fig. 2. AAssembled in this manner, the bristles arevery securely heldA in place. Not only do the prongs 5 assist in theaccomplishment of this end, but the intertwisted wires 2 also verysecurely bind the bristles between them.

The we have previously unit, and as we complete brush may consist ofunits. When one unit constitutes brush, a bushing of some comparativelyso metal, such as lead, is poured or pressed into the sleeve 3, and Visprovided with an perture for the reception ofl the spindle ofit apolishing machine. When. a greater parts so far described constitutewhat referred -to as a brush one or more the number of units constitutethe brush (as,

two for instance) they are placed lside by side and a bushing is pouredor pressed into the alining sleeves of the two units and serves to.firmly bind them together. Such in an assembly of this kind, theserrated have already explained, a

fees

a brush is illustrated in Fig. 2 wherein the ,105

6, and is Ashownas ends of the bushing 3 are placed on the inside of thebrush or against each other so that the entire flanges 4 will appearupon the outside of the brush, thus rendering the brush neat andattractive in appearance.

"F rom the foregoingit willl be seen that our invention provides asimple andl substantial construction for metal polishing brushes, andthat the brushes may be cheaply and easily produced in various sizes bythe use of the same equipment.

Having thus described our invention,

Awhat we claim is:

1. A brush of the character set forth comprising an integral cylindricalhub member j having a lateral flange at one end .and a .series of prongsat the other, and a bristle carrying `element surrounding the hub and iing contact with the bristle carrying element.

8. A brush of the character set forth comprising a cylindrical hubmember having a lateral flange at one end and a series of prongs at theother, and a circular bristle carrying element that is adapted to beslipped over the end of the hub member and against the flange, theprongs being arranged to be turned outward and toward the flange andinto pinching contact with the bristle carrying element.

4. A brush of the character setforth comprising a pair of cylindricalhub members having each a lateral flange at one end and a series ofprongs at the other, a bristle carrying element surrounding each hubmember and confined between the flange and prongs thereof, and abushingY whereon said hub membersv are mounted and whereby they are heldtogether, the hub members being arranged with their prong ends inengagement.

` fore conceale 5. A brush of the character set forth comprising a pairof cylindrical hub membersy -hub members for holding them together,

the hub members being arranged with their prong ends in engagement, andsaid bushing having a smooth bore.

6. A brush of the character set forth comprising an annular plate fromthe inner periphery of which extend laterally and then outwardly andtoward the body portion of the plate a series of prongs, and bristleshaving portions confined between the body portion of the plate and saidprongs.

7 A brush ofthe character set forth com prising an annular plate fromthe inner periphery of which extend laterally and then outwardly andtoward the body portion of the late a series of prongs, bristles havingportions that lie alongside said plate, and bristle retaining elementsconfined with the aforesaid portions of the bristles between the bodyportion of the plate and said prongs, as and for the purpose specified.

8. A brush of the character set forth consisting of a series of hubmembers comprising each an annular plate from the inner periphery ofwhich prongs extend laterally and then outwardly and toward the bodyportion of the plate, bristles having portions confined between the bodyportion of each plate and its respective prongs, and a common bushingwhereon the hub members are mounted and whereby they are held together,the hub members being so arranged that the end ones of the series havetheir prongs presented inward and there- In testimony whereof, wehereunto -aiix our s1gnatures 1n the presence of two witnesses.

OTT@ GEGER; RUDOLPH R.' RADNSE. Witnesses:

J. B. HULL, BRENNAN B. WEST.

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